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(11)

EP 4 008 072 A1

(12)

(43) Date of publication: 08.06.2022 Bulletin 2022/23 (21) Application number: 20731093.9 (22) Date of filing: 10.06.2020

(51) International Patent Classification (IPC):  H04L 1/08(2006.01) H04L 1/18(2006.01) (52) Cooperative Patent Classification (CPC): H04L 1/08; H04L 1/1848; H04L 1/1896; H04L 1/1887; H04L 1/1822 (86) International application number: PCT/EP2020/066044 (87) International publication number: WO 2021/023416 (11.02.2021 Gazette 2021/06)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 02.08.2019 EP 19189862 (71) Applicant: Panasonic Intellectual Property Corporation of America Torrance, CA 90503 (US)	(72) Inventors: SHAH, Rikin 63225 Langen (DE) BHAMRI, Ankit 63225 Langen (DE) SUZUKI, Hidetoshi Osaka-shi Osaka 540-6207 (JP) TAO, Ming-Hung 63225 Langen (DE) NISHIO, Akihiko Osaka-shi Osaka 540-6207 (JP) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)